22222344678 has 16 divisors (see below), whose sum is σ = 44446152816. Its totient is φ = 7407204320.

The previous prime is 22222344671. The next prime is 22222344679. The reversal of 22222344678 is 87644322222.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222344671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310648 + ... + 375428.

It is an arithmetic number, because the mean of its divisors is an integer number (2777884551).

Almost surely, 2^22222344678 is an apocalyptic number.

22222344678 is an abundant number, since it is smaller than the sum of its proper divisors (22223808138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222344678 is a wasteful number, since it uses less digits than its factorization.

22222344678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121959.

The product of its digits is 516096, while the sum is 42.

The spelling of 22222344678 in words is "twenty-two billion, two hundred twenty-two million, three hundred forty-four thousand, six hundred seventy-eight".